Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorOrawan Khammanen_US
dc.contributor.authorJiraporn Jainumponeen_US
dc.contributor.authorAnucha Watcharapasornen_US
dc.contributor.authorSupon Anantaen_US
dc.description.abstract© 2016, The Korean Physical Society. The potential utilization of two-stage sintering for the production of very dense and pure nickel diniobate (Ni4Nb2O9) ceramics with low firing temperature was demonstrated. The effects of the designed sintering conditions on the phase formation, densification and microstructure of the ceramics were characterized by using X-ray diffraction (XRD), Archimedes method and scanning electron microscopy (SEM), respectively. The minor phase of columbite NiNb2O6 tended to form together with the desired Ni4Nb2O9 phase, depending on the sintering conditions. Optimization of the sintering conditions may lead to a single-phase Ni4Nb2O9 ceramics with an orthorhombic structure. The ceramics doubly sintered at 950/1250 ◦C for 4 h exhibited a maximum density of ~92%. Microstructures with denser angular grain-packing were generally found in the sintered Ni4Nb2O9 ceramics. However, the grains were irregular in shape when the samples were sintered at 1050/1250 ◦C. Two-stage sintering was also found to enhance the ferroelectric behavior of the Ni4Nb2O9 ceramic.en_US
dc.subjectPhysics and Astronomyen_US
dc.titleFabrication, phase formation and microstructure of Ni<inf>4</inf>Nb<inf>2</inf>O<inf>9</inf> ceramics fabricated by using the two-stage sintering techniqueen_US
article.title.sourcetitleJournal of the Korean Physical Societyen_US
article.volume69en_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.

Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.